DETERMINATION OF GALLIUM IN COAL AND COAL FLY-ASH BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY USING SLURRY SAMPLING AND NICKEL CHEMICAL MODIFICATION

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	DETERMINATION OF GALLIUM IN COAL AND COAL FLY-ASH BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY USING SLURRY SAMPLING AND NICKEL CHEMICAL MODIFICATION
	SHAN, XQ; WANG, W; WEN, B
刊名	JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
	1992
卷号	7 期号:5 页码:761-764
关键词	GALLIUM DETERMINATION COAL AND COAL FLY ASH ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY SLURRY SAMPLING NICKEL CHEMICAL MODIFIER
英文摘要	A method was developed for the determination of gallium in coal and coal fly ash by electrothermal atomic absorption spectrometry using slurry sampling and nickel chemical modification. In the presence of nickel modifier the integrated absorbance for gallium was improved by a factor of 2.46 and matrix interferences with the absorption signals were eliminated, and hence similar atomization profiles were obtained for gallium in slurries and in aqueous standard solutions. Therefore, calibration using aqueous standards could be applied. The recommended method was applied to the determination of gallium in real samples. The data obtained by slurry sampling were in good agreement with the certified values or with those obtained after pressure attack of the samples. The relative standard deviations for ten replicate determinations were in the range 2.1-5.7% for gallium in coal and coal fly ash for gallium concentrations of 1.05-59.7% mug g-1.
WOS记录号	WOS:A1992JQ89500010
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24498]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	SHAN, XQ,WANG, W,WEN, B. DETERMINATION OF GALLIUM IN COAL AND COAL FLY-ASH BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY USING SLURRY SAMPLING AND NICKEL CHEMICAL MODIFICATION[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,1992,7(5):761-764.
APA	SHAN, XQ,WANG, W,&WEN, B.(1992).DETERMINATION OF GALLIUM IN COAL AND COAL FLY-ASH BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY USING SLURRY SAMPLING AND NICKEL CHEMICAL MODIFICATION.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,7(5),761-764.
MLA	SHAN, XQ,et al."DETERMINATION OF GALLIUM IN COAL AND COAL FLY-ASH BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY USING SLURRY SAMPLING AND NICKEL CHEMICAL MODIFICATION".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 7.5(1992):761-764.